A reed nut feeder

Abstract

The utility model relates to the reed nut feeding device field especially relates to a reed nut feeding device, including base, the base top is equipped with vibration dish and support frame, the output of vibration dish is equipped with reed nut conveying track, the top of support frame is equipped with mounting platform, the top of mounting platform is fixed with detection seat, and detection seat is located the end of conveying track, the top of detection seat is equipped with with conveying track alignment's reed nut limiting groove, detection device is installed to the top of detection seat, the mounting platform top is equipped with reed nut receiving device, and the automatic screening and ordering of reed nut are realized through vibration dish, and the subsequent detection, receiving link is also through the automatic execution of cylinder, forms " feed - detection - transfer " whole process automation, and the artificial operation intensity is greatly reduced, and the feed quantity of unit time is improved simultaneously, is applicable to batch production scene.

Description

Technical Field

[0001] This utility model relates to the field of spring nut feeding devices, and in particular to a spring nut feeding device. Background Technology

[0002] Spring nuts are commonly used in automotive interior and exterior trim for fastening plastic parts. The stability and consistency of their feeding directly determine the assembly efficiency and safety of the final product. However, current spring nut feeding devices on the market generally suffer from low automation, weak quality control, and unreasonable structural design, making it difficult to meet the high precision and high efficiency requirements of mass production.

[0003] Therefore, it is necessary to provide a spring nut feeding device to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a spring nut feeding device.

[0005] This utility model provides a spring nut feeding device, including a base, a vibratory feeder and a support frame installed on the top of the base, a spring nut conveying track provided at the output end of the vibratory feeder, an installation platform installed at the top of the support frame, a detection seat fixed at the top of the installation platform and located at the end of the conveying track, a spring nut limiting groove aligned with the conveying track provided at the top of the detection seat, a detection device installed at the top of the detection seat, and a spring nut receiving device installed at the top of the installation platform.

[0006] Material feeding and sorting stage After the device is started, the base provides stable support for the entire system, and the vibratory feeder on it begins to work: through vibration, it sorts and arranges the messy reed nuts inside, ensuring that the reed nuts are in a uniform posture with consistent opening and groove orientation, and enters the reed nut conveying track at the output end of the vibratory feeder. At the same time, the vibration generating component on the top of the base starts synchronously, causing the reed nut conveying track to vibrate slightly, preventing the reed nuts from getting stuck in the track, and ensuring that they are stably conveyed to the detection end along the track.

[0007] Preferably, the detection device includes a Z-shaped sheet metal fixed to the top of the detection seat, a detection cylinder fixed on the Z-shaped sheet metal opposite the spring nut limiting groove, a pressure sensor fixed to the output end of the detection cylinder, and a detection head for squeezing the spring nut fixed to the output end of the pressure sensor.

[0008] Pre-detection positioning stage A single reed nut, conveyed via a track, enters a testing seat located at the end of the track. The testing seat is fixed to a mounting platform supported by a support frame, which ensures the platform's height stability through four mounting bases, columns, and bolt adjustment mechanisms. Because the reed nut limiting groove on the top of the testing seat aligns with the reed nut conveying track, and the groove's length is equal to the reed nut's length, the reed nut will precisely embed itself within the groove, achieving posture fixation before testing and providing a stable reference for subsequent testing.

[0009] Spring nut pressure testing stage After the reed nut is positioned within the testing seat, the testing device is activated: the Z-shaped sheet metal fixed to the top of the testing seat provides mounting support for the testing cylinder. The output end of the testing cylinder extends vertically, driving the pressure sensor and testing head at its end towards the reed nut. When the testing head contacts the surface of the reed nut and continuously compresses it, the pressure sensor collects pressure data in real time during the compression process. By comparing this data with preset qualification thresholds, such as structural strength thresholds and assembly tightness thresholds, the device determines whether the current reed nut meets the quality requirements.

[0010] Preferably, the spring nut receiving device includes a telescopic cylinder fixed to the top of the installation platform, and the telescopic direction of the telescopic cylinder is perpendicular to the conveying direction of the spring nut conveying track. A U-shaped fixing block is installed at the output end of the telescopic cylinder, and a receiving seat is fixed at the bottom of the fixing block.

[0011] Post-testing transfer phase After inspection, the spring nut receiving device is activated: a telescopic cylinder fixed to the top of the installation platform extends in a direction perpendicular to the conveying direction of the spring nut conveying track to avoid interference with the track's material transport. The output end of the telescopic cylinder extends, driving the U-shaped fixing block at the end and the receiving seat at the bottom towards the inspection seat. Because the receiving seat is in direct contact with the inspection seat, and the receiving groove inside the receiving seat precisely aligns with the spring nut limiting groove of the inspection seat, while the T-shaped positioning block on the receiving seat matches the groove of the spring nut, the spring nut smoothly transfers from the spring nut limiting groove into the receiving groove. Subsequently, the telescopic cylinder retracts, moving the receiving seat and spring nut away from the inspection position, conveying qualified spring nuts to the next process, or rejecting unqualified spring nuts, completing the entire "feeding-inspection-receiving" process for a single spring nut.

[0012] Preferably, the receiving seat contacts the detection seat, and the receiving seat has a receiving groove that mates with the spring nut.

[0013] Preferably, a T-shaped positioning block is fixed on the receiving seat, and the T-shaped positioning block cooperates with the groove of the spring nut.

[0014] Preferably, the lengths of the receiving groove and the spring nut limiting groove are equal to the length of the spring nut, ensuring that one receiving groove and one spring nut limiting groove can accommodate one spring nut.

[0015] Preferably, the support frame includes four mounting seats fixed to the top of the base. Each mounting seat has a mounting groove and symmetrical ear plates. There is a gap between two ear plates, and this gap communicates with the mounting groove. A bolt for reducing the size of the mounting groove is installed between the two ear plates. A column is fixed in the mounting groove, and the top of the column is fixedly connected to the mounting platform.

[0016] Preferably, a vibration generating component is installed on the top of the base to cause the spring nut conveyor track to vibrate.

[0017] Compared with related technologies, the present invention provides the following beneficial effects: The device automatically sorts and sorts the spring nuts using a vibratory feeder. In conjunction with the vibration generator, it drives the spring nut conveyor track to prevent jamming during the entire process, eliminating the need for manual sorting or pushing of the spring nuts. Subsequent inspection and receiving processes are also automatically executed by cylinders, forming a fully automated "feeding-inspection-transfer" process. This significantly reduces the intensity of manual operation while increasing the amount of material fed per unit time, making it suitable for mass production scenarios.

[0018] The inspection process employs multiple precise design features to ensure effective quality control: First, the spring nut limiting groove of the inspection seat is the same length as the spring nut, thus fixing the spring nut's posture. Second, the Z-shaped sheet metal positioning inspection cylinder drives the inspection head to apply vertical pressure, and the pressure sensor collects data in real time and compares it with a preset threshold. This accurately identifies problems such as insufficient structural strength of the spring nut and unqualified assembly tightness, effectively eliminating defective products and preventing unqualified spring nuts from flowing into subsequent processes, thereby improving the consistency of the final product quality.

[0019] The design of the spring nut receiving device fully considers material protection: the telescopic cylinder adopts a telescopic direction perpendicular to the conveying track to avoid interference with the material conveying on the track; the receiving seat and the detection seat are in direct contact, and the receiving groove and the T-shaped positioning block are precisely matched with the spring nut limiting groove and the spring nut groove, respectively, to ensure that the spring nut is transferred from the detection position to the receiving position without deviation or collision, reducing the damage to the spring nut caused by transfer jamming or friction, and reducing the material loss rate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the installation platform of this utility model; Figure 3 This is a schematic diagram of the receiving seat structure of this utility model; Figure 4 This is a schematic diagram showing the position of the spring nut relative to the receiving seat in this utility model; Figure 5 This is a schematic diagram of the mounting base structure of this utility model; Figure 6 This is a schematic diagram of the detection device of this utility model.

[0021] The diagram shows the following components: 1. Base; 2. Vibratory feeder; 3. Support frame; 4. Spring nut conveying track; 5. Mounting platform; 6. Detection seat; 7. Spring nut limiting groove; 8. Detection device; 9. Spring nut receiving device; 10. Z-shaped sheet metal; 11. Detection cylinder; 12. Pressure sensor; 13. Detection head; 14. Telescopic cylinder; 15. U-shaped fixing block; 16. Receiving seat; 17. Accommodating groove; 18. T-shaped positioning block; 19. Spring nut groove; 20. Spring nut; 21. Mounting seat; 22. Mounting slot; 23. Ear plate; 24. Vibration generating component; 25. Column. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please refer to the following: Figures 1 to 6 A spring-loaded nut feeding device, the core structure of which consists of... This spring nut feeding device is designed with stable feeding and accurate detection as its core objectives. Its main structure includes: The base 1, serving as the overall support foundation, has a vibratory feeder 2 for sorting reed nuts and a support frame 3 for supporting the upper structure, which are bolted to the top of the base 1. The output port of the vibratory feeder 2 is welded to one end of the reed nut conveying track 4 to ensure that the reed nuts can directly enter the track. The top of the support frame 3 is rigidly connected to the mounting platform 5 through a flange to keep the mounting platform 5 horizontal and stable. The upper surface of the mounting platform 5 is fixed with a detection seat 6 by countersunk screws, and the installation position of the detection seat 6 precisely corresponds to the other end of the reed nut conveying track 4 to achieve seamless connection between the track and the detection seat. The top of the detection seat 6 has a reed nut limiting groove 7 that is completely aligned with the inner track groove of the reed nut conveying track 4. At the same time, a detection device 8 for quality inspection is also installed at the top edge of the detection seat 6. On the side of the top of the mounting platform 5 near the detection seat 6, a reed nut receiving device 9 for receiving the reed nuts after inspection is also fixed. II. Working Process of Spring Nut Feeding Device 1. Material feeding and sorting stage After the device is powered on and started, the base 1, with its heavy metal material, provides stable support for the entire device, preventing the overall displacement caused by the vibration generated by the operation of each component. The vibratory plate 2 installed on the top of the base 1 then starts to work. The high-frequency vibration inside drives the spring nut 20 to slowly rise along the spiral track on the inner wall of the vibratory plate. During the process, the baffle structure on the inner side of the track filters out the messy spring nuts - only the spring nuts 20 with the correct posture (opening orientation is consistent, groove direction is uniform) are allowed to pass through the filtering port and finally enter the spring nut conveying track 4 which is fixedly connected to the output end of the vibratory plate 2. At the same time, a vibration generating component 24, consisting of a small vibration motor, is installed at the top of the base 1 near the bottom of the spring nut conveying track 4 and starts synchronously. This component is connected to the metal bracket at the bottom of the track by bolts, which can cause the spring nut conveying track 4 to generate slight longitudinal vibration (amplitude controlled at 0.5-1mm), effectively preventing the spring nut 20 from getting stuck due to slight deformation of the track or surface friction, and ensuring that the spring nut 20 is continuously and smoothly conveyed along the track to the detection end where the detection seat 6 is located. 2. Preferred structure of the detection device To achieve accurate quality detection of the spring nut, the detection device 8 adopts a modular design, the specific structure of which is as follows: The mounting carrier of the detection device 8 is a Z-shaped sheet metal 10, which is horizontally fixed to the top of the detection seat 6 near the spring nut limiting groove 7 by screws. Its bending structure allows the detection component to avoid the edge protrusion of the detection seat 6 and avoid motion interference. Below the horizontal section of the Z-shaped sheet metal 10, directly opposite the central axis of the spring nut limiting groove 7, a detection cylinder 11 is fixedly installed by a cylinder bracket. The output end (piston rod) of the detection cylinder 11 is set downward, and a high-precision pressure sensor 12 is fixed to the end of the piston rod by a threaded connection. The bottom output end of the pressure sensor 12 is fixed to a detection head 13 by a spring nut structure. The detection head 13 is made of wear-resistant rubber material, which ensures the extrusion strength and avoids scratching the surface of the spring nut 20.

[0024] 3. Pre-detection positioning stage After feeding and sorting are completed, the device enters the pre-test positioning stage: A single spring nut 20, conveyed by the spring nut conveying rail 4, smoothly enters the detection seat 6 located at the end of the rail under the inertial action of the rail end. The detection seat 6 is fixed to the mounting platform 5 by countersunk screws, and the mounting platform 5 is stably supported by the support frame 3. The specific support structure of the support frame 3 is as follows: four rectangular mounting seats 21 are fixed to the top of the base 1 by expansion screws. Each mounting seat 21 has a vertically penetrating mounting groove 22 inside. Two ear plates 23 are symmetrically welded to the outer wall of the mounting seat 21. A gap is reserved between the two ear plates 23 to communicate with the mounting groove 22. A fastening bolt is inserted in the gap. When the bolt is tightened, the ear plate 23 will drive the side wall of the mounting groove 22 to retract inward, thereby clamping the column 25 inserted in the mounting groove 22. The top of the column 25 is fixedly connected to the bottom of the mounting platform 5 by a flange. By adjusting the bolts on the four mounting seats 21, the height of the column 25 can be finely adjusted to ensure that the mounting platform 5 always remains horizontal, thereby ensuring the stability of the detection seat 6. Since the spring nut limiting groove 7 on the top of the test seat 6 is perfectly aligned with the inner track groove of the spring nut conveying track 4, and the length of the spring nut limiting groove 7 is exactly equal to the length of the spring nut 20 (tolerance controlled within ±0.05mm), the spring nut 20 will be precisely embedded in the spring nut limiting groove 7. The gap between the inner wall of the groove and the side of the spring nut 20 is less than 0.1mm, which can effectively limit the left and right offset and up and down sway of the spring nut 20, realize the posture fixation before testing, and provide a stable reference position for subsequent pressure testing. 4. Spring Nut Pressure Testing Stage After the reed nut 20 is positioned within the reed nut limiting groove 7 of the detection seat 6, the detection device 8 starts according to the preset program: First, the detection cylinder 11, fixed on the Z-shaped sheet metal 10, is connected to compressed air. Its piston rod slowly extends vertically downward (the extension speed is controlled at 5-10 mm / s by a pneumatic throttle valve), driving the pressure sensor 12 and the detection head 13 fixed at the end of the piston rod to move downward synchronously. When the bottom end face of the detection head 13 contacts the top surface of the spring nut 20, the detection cylinder 11 continues to slowly apply pressure. The pressure sensor 12 collects the pressure data during the extrusion process in real time (the detection accuracy can reach ±0.1N) and transmits the data to the control system of the device via a data cable. The control system compares the real-time pressure value with the preset qualified threshold (such as the spring nut structural strength threshold of 10-15N and the assembly tightness threshold of 8-12N). If the pressure data is within the qualified range, the current spring nut 20 is determined to be a qualified product. If the data exceeds the threshold or a sudden drop in pressure occurs (indicating that the spring nut is broken or deformed), it is determined to be a defective product, providing a basis for the diversion of subsequent transfer processes. 5. Preferred structure of the spring-nut receiving device To ensure smooth transfer of the spring nut after testing, the spring nut receiving device 9 adopts an anti-interference and high-precision design, the specific structure of which is as follows: The power source for the spring nut receiving device 9 is a telescopic cylinder 14. This cylinder is fixedly installed on the top of the mounting platform 5 via a cylinder seat. The extension and retraction direction of the piston rod of the telescopic cylinder 14 is perpendicular to the spring nut conveying direction of the spring nut conveying track 4 (the track conveying direction is forward and backward, and the cylinder extension and retraction direction is left and right). This completely avoids the track conveying path and prevents movement interference with the spring nut to be tested in the track. A U-shaped fixing block 15 is fixed to the end of the piston rod of the telescopic cylinder 14 via a threaded connection. The opening of the U-shaped fixing block 15 faces the side of the detection seat 6, and a receiving seat 16 is fixedly installed at its bottom with screws. The design of the U-shaped structure avoids the edge protrusion of the detection seat 6, ensuring that the receiving seat 16 can smoothly approach the detection seat 6. 6. Post-testing transfer phase After the test is completed, the control system drives the spring nut receiving device 9 to start based on the test results, and performs the spring nut transfer operation: The telescopic cylinder 14, fixed to the top of the mounting platform 5, is connected to the air source. The piston rod extends horizontally towards the side of the detection seat 6, driving the U-shaped fixing block 15 at the end and the receiving seat 16 at the bottom to move synchronously. Since the top end face of the receiving seat 16 is flush with the top end face of the detection seat 6 and in direct contact (the gap is less than 0.1mm), and the receiving groove 17 opened in the receiving seat 16 is completely aligned with the spring nut limiting groove 7 of the detection seat 6 (the deviation of the central axis is less than 0.05mm), and the T-shaped positioning block 18 fixed at the top of the receiving seat 16 can be accurately embedded in the groove 19 of the spring nut 20, further restricting the rotation of the spring nut 20, the spring nut 20 will slide smoothly from the spring nut limiting groove 7 into the receiving groove 17 of the receiving seat 16 under the slight action of the cylinder thrust. The entire transfer process is without collision or offset. Subsequently, the piston rod of the telescopic cylinder 14 retracts, causing the receiving seat 16 and the spring nut 20 to move away from the detection position of the detection seat 6. If the spring nut 20 is a qualified product, the receiving seat 16 will transport it to the feed port of the next assembly process, where the spring nut will slide down naturally due to the inclined design of the receiving groove 17. If it is a defective product, the receiving seat 16 will transport it above the defective product collection box, where the spring nut will be pushed out of the receiving groove 17 by a pneumatic push rod, thus completing the rejection. At this point, the entire process of "feeding-detection-receiving" for a single spring nut is completed, and the device will then enter the next working cycle. III. Supplementary Explanation of the Optimal Structure of the Device To ensure the stability of the fit between the receiving seat 16 and the testing seat 6, the receiving seat 16 is made of engineering plastic material, which has a certain degree of hardness and cushioning, and can reduce wear when in contact with the testing seat 6. The T-shaped positioning block 18 is fixed to the top of the receiving seat 16 by both glue and screws. Its size is perfectly matched with the groove 19 of the spring nut 20 (clearance fit, tolerance ±0.03mm), which can effectively prevent the spring nut from rotating when it is moved. The lengths of the receiving groove 17 and the spring nut limiting groove 7 are strictly equal to the length of the spring nut 20 (tolerance ±0.05mm), and the width of the groove is 0.1-0.2mm larger than the width of the spring nut, which ensures that the spring nut can move in and out smoothly and avoids shaking. The mounting base 21 of the support frame 3 is made of cast iron, and the inner wall of the mounting groove 22 is provided with anti-slip texture. When the bolts between the ear plates 23 are tightened, the mounting groove 22 can tightly clamp the column 25. The column 25 is made of stainless steel, which ensures the support strength while preventing rust. The vibration generating component 24 is connected to the spring nut conveying track 4 via an elastic bracket, which can reduce the transmission of vibration to the base 1 and avoid affecting the stability of other components.

[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A spring nut feeding device, characterized in that, Includes a base (1), on the top of which a vibratory plate (2) and a support frame (3) are installed. The output end of the vibratory plate (2) is provided with a spring nut conveying track (4). The top of the support frame (3) is provided with an installation platform (5). The top of the installation platform (5) is fixed with a detection seat (6), and the detection seat (6) is located at the end of the conveying track (4). The top of the detection seat (6) is provided with a spring nut limiting groove (7) aligned with the conveying track (4). The top of the detection seat (6) is provided with a detection device (8). The top of the installation platform (5) is provided with a spring nut receiving device (9).

2. The spring nut feeding device according to claim 1, characterized in that, The detection device (8) includes a Z-shaped sheet metal (10) fixed on the top of the detection seat (6). A detection cylinder (11) is fixed on the Z-shaped sheet metal (10) opposite the spring nut limiting groove (7). A pressure sensor (12) is fixed at the output end of the detection cylinder (11). A detection head (13) for squeezing the spring nut is fixed at the output end of the pressure sensor (12).

3. The spring nut feeding device according to claim 2, characterized in that, The spring nut receiving device (9) includes a telescopic cylinder (14) fixed on the top of the installation platform (5), and the telescopic direction of the telescopic cylinder (14) is perpendicular to the conveying direction of the spring nut conveying track (4). A U-shaped fixing block (15) is installed at the output end of the telescopic cylinder (14), and a receiving seat (16) is fixed at the bottom of the fixing block (15).

4. A spring nut feeding device according to claim 3, characterized in that, The receiving seat (16) contacts the detection seat (6), and the receiving seat (16) is provided with a receiving groove (17) that cooperates with the spring nut.

5. A spring nut feeding device according to claim 4, characterized in that, The receiving seat (16) is fixed with a T-shaped positioning block (18), and the T-shaped positioning block (18) cooperates with the groove (19) of the spring nut.

6. A spring nut feeding device according to claim 5, characterized in that, The lengths of the receiving groove (17) and the spring nut limiting groove (7) are equal to the length of the spring nut (20), ensuring that one receiving groove (17) and the spring nut limiting groove (7) can accommodate one spring nut (20).

7. A spring nut feeding device according to claim 6, characterized in that, The support frame (3) includes four mounting seats (21) fixed to the top of the base (1). The mounting seats (21) are provided with mounting grooves (22). The mounting seats (21) are symmetrically provided with ear plates (23). There is a gap between the two ear plates (23), and this gap is connected to the mounting groove (22). A bolt for making the mounting groove (22) smaller is installed between the two ear plates (23). A column (25) is fixed in the mounting groove (22). The top of the column (25) is fixedly connected to the mounting platform (5).

8. A spring nut feeding device according to claim 1, characterized in that, The base (1) is equipped with a vibration generating component (24) on top, which causes the spring nut conveying track (4) to vibrate.

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